\u65b0\u898f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b\u3002
\n\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u7a2e\u985e\u306f\u3001Spring\u30b9\u30bf\u30fc\u30bf\u30fc\u30fb\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u9078\u629e\u3059\u308b\u3002<\/p>\n
\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u540d\u3092\u300cbookshelf\u300d\u306b\u3057\u3066\u6b21\u3078\u3092\u30af\u30ea\u30c3\u30af\u3002<\/p>\n
\u4f9d\u5b58\u95a2\u4fc2\u306f\u3001\u4ee5\u4e0b\u306e\u9805\u76ee\u3092\u9078\u629e\u3059\u308b\u3002<\/p>\n
\u300c\u5b8c\u4e86\u300d\u3067bookshelf\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u304c\u3067\u304d\u308b\u3002<\/p>\n
pom.xml \u3092\u958b\u3044\u3066\u30018\u884c\u76ee\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u30922.2.1\u306b\u4fee\u6b63\u3059\u308b\u3002<\/p>\n
\r\n\t\t<version>2.2.1.RELEASE<\/version>\r\n<\/pre>\n[\u5b9f\u884c]-[Spring Boot \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3]\u3092\u9078\u629e\u3059\u308b\u3068\u30b5\u30fc\u30d0\u30fc\u304c\u8d77\u52d5\u3059\u308b\u3002<\/p>\n
http:\/\/localhost:8080 \u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3068\u3001Whitelabel Error Page \u304c\u8868\u793a\u3055\u308c\u308b\u3002<\/p>\n
IndexControler.java \u3092\u4f5c\u6210\u3059\u308b\u3002<\/p>\n
\r\npackage jp.kpc;\r\n\r\nimport org.springframework.stereotype.Controller;\r\nimport org.springframework.web.bind.annotation.RequestMapping;\r\n\r\n@Controller\r\npublic class IndexController {\r\n\r\n\t@RequestMapping("\/")\r\n\tpublic String index() {\r\n\t\treturn "index";\r\n\t}\r\n\r\n}\r\n<\/pre>\nexample \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e index.html \u3092\u30b3\u30d4\u30fc\u3057\u3066\u3001src\/main\/resources \u306e templates \u306b\u8cbc\u308a\u4ed8\u3051\u308b\u3002<\/p>\n
SpringBoot\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u518d\u8d77\u52d5\u3059\u308b\u3068\u3001\u300c\u6700\u521d\u306e\u30da\u30fc\u30b8\u300d\u304c\u8868\u793a\u3055\u308c\u308b\u3002<\/p>\n
application.properties \u306b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u63a5\u7d9a\u8a2d\u5b9a\u3092\u8ffd\u52a0\u3059\u308b\u3002<\/p>\n
\r\nspring.datasource.url=jdbc:hsqldb:hsql:\/\/localhost\/bookshelf\r\nspring.datasource.username=SA\r\nspring.datasource.password=\r\nspring.datasource.driver-class-name=org.hsqldb.jdbc.JDBCDriver\r\nspring.jpa.hibernate.ddl-auto=update\r\n<\/pre>\nhsqldb.bat \u306b bookshelf \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u8ffd\u52a0\u3059\u308b\u3002<\/p>\n
\r\ncd data\r\njava -classpath ..\/lib\/hsqldb.jar org.hsqldb.server.Server ^\r\n--database.0 db\/shindan --dbname.0 shindan ^\r\n--database.1 db\/bookshelf --dbname.1 bookshelf\r\n<\/pre>\nindex.html \u306b\u3001\u65b0\u3057\u3044\u672c\u68da\u3092\u8ffd\u52a0\u3059\u308b\u305f\u3081\u306e\u30d5\u30a9\u30fc\u30e0\u3092\u7528\u610f\u3059\u308b\u3002<\/p>\n
\r\n<!DOCTYPE html>\r\n<html xmlns:th="http:\/\/www.thymeleaf.org">\r\n<head>\r\n<meta charset="UTF-8">\r\n<title>Bookshelf - \u672c\u68da<\/title>\r\n<\/head>\r\n<body>\r\n\r\n<h1>Bookshelf list<\/h1>\r\n\r\n<hr \/>\r\n\r\n<div>\u65b0\u3057\u3044\u672c\u68da<\/div>\r\n<form action="\/addshelf" method="post">\r\n\t<div>\u306a\u307e\u3048<\/div>\r\n\t<div><input type="text" name="name" \/><\/div>\r\n\t<div><input id="submit" type="submit" value="+\u8ffd\u52a0" \/><\/div>\r\n<\/form>\r\n\r\n\r\n<\/body>\r\n<\/html>\r\n<\/pre>\nIndexController.java \u306b \/addshelf \u306b\u5bfe\u3059\u308b POST \u3092\u53d7\u3051\u53d6\u308b\u7528\u610f\u3092\u3059\u308b\u3002POST\u3092\u53d7\u3051\u53d6\u3063\u305f\u3042\u3068\u306f\u3001URL=”\/” \u306b\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3059\u308b\u3002<\/p>\n
\r\npackage jp.kpc;\r\n\r\nimport org.springframework.stereotype.Controller;\r\nimport org.springframework.web.bind.annotation.RequestMapping;\r\nimport org.springframework.web.bind.annotation.RequestMethod;\r\nimport org.springframework.web.bind.annotation.RequestParam;\r\nimport org.springframework.web.servlet.ModelAndView;\r\n\r\n@Controller\r\npublic class IndexController {\r\n\r\n\t@RequestMapping("\/")\r\n\tpublic String index() {\r\n\t\treturn "index";\r\n\t}\r\n\r\n\t@RequestMapping(value="\/addshelf", method=RequestMethod.POST)\r\n\tpublic ModelAndView formPost(ModelAndView mav,\r\n\t\t\t@RequestParam("name") String name) {\r\n\t\treturn new ModelAndView("redirect:\/");\r\n\t}\r\n}\r\n<\/pre>\n\u672c\u68da\u306b\u5bfe\u5fdc\u3059\u308b Bookshelf \u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3059\u308b\u3002<\/p>\n
\r\npackage jp.kpc;\r\n\r\nimport javax.persistence.Column;\r\nimport javax.persistence.Entity;\r\nimport javax.persistence.GeneratedValue;\r\nimport javax.persistence.Id;\r\nimport javax.validation.constraints.NotEmpty;\r\nimport javax.validation.constraints.NotNull;\r\n\r\n@Entity\r\npublic class Bookshelf {\r\n\t@Id\r\n\t@GeneratedValue\r\n\t@Column\r\n\t@NotNull\r\n\tprivate long id;\r\n\r\n\t@Column\r\n\t@NotEmpty\r\n\tprivate String name;\r\n\r\n\tpublic long getId() {\r\n\t\treturn id;\r\n\t}\r\n\r\n\tpublic void setId(long id) {\r\n\t\tthis.id = id;\r\n\t}\r\n\r\n\tpublic String getName() {\r\n\t\treturn name;\r\n\t}\r\n\r\n\tpublic void setName(String name) {\r\n\t\tthis.name = name;\r\n\t}\r\n\r\n}\r\n<\/pre>\n\u65b0\u898f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u4f5c\u6210\u3059\u308b\u3002
\nBookshelfRepository.java<\/p>\n\r\npackage jp.kpc;\r\n\r\nimport org.springframework.data.jpa.repository.JpaRepository;\r\n\r\npublic interface BookshelfRepository extends JpaRepository<Bookshelf, Long> {\r\n\r\n}\r\n<\/pre>\nIndexController.java \u3067\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u30d1\u30e9\u30e1\u30fc\u30bf\u3067\u6e21\u3055\u308c\u305f\u540d\u524d\u306e\u672c\u68da\u3092\u4fdd\u5b58\u3059\u308b\u51e6\u7406\u3092\u8ffd\u52a0\u3059\u308b\u3002<\/p>\n
\r\npackage jp.kpc;\r\n\r\nimport org.springframework.beans.factory.annotation.Autowired;\r\nimport org.springframework.stereotype.Controller;\r\nimport org.springframework.web.bind.annotation.RequestMapping;\r\nimport org.springframework.web.bind.annotation.RequestMethod;\r\nimport org.springframework.web.bind.annotation.RequestParam;\r\nimport org.springframework.web.servlet.ModelAndView;\r\n\r\n@Controller\r\npublic class IndexController {\r\n\r\n\t@Autowired\r\n\tprivate BookshelfRepository repository;\r\n\r\n\t@RequestMapping("\/")\r\n\tpublic String index() {\r\n\t\treturn "index";\r\n\t}\r\n\r\n\t@RequestMapping(value="\/addshelf", method=RequestMethod.POST)\r\n\tpublic ModelAndView formPost(ModelAndView mav,\r\n\t\t\t@RequestParam("name") String name) {\r\n\t\tBookshelf bookshelf = new Bookshelf();\r\n\t\tbookshelf.setName(name);\r\n\t\trepository.saveAndFlush(bookshelf);\r\n\t\treturn new ModelAndView("redirect:\/");\r\n\t}\r\n}\r\n<\/pre>\n\u30c8\u30c3\u30d7\u30da\u30fc\u30b8\u306b\u30a2\u30af\u30bb\u30b9\u304c\u3042\u3063\u305f\u3068\u304d\u306b\u3001\u672c\u68da\u30ea\u30b9\u30c8\u3092\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306b\u6e21\u3059\u3002<\/p>\n
IndexController.java<\/p>\n
\r\n@Controller\r\npublic class IndexController {\r\n\r\n\t@Autowired\r\n\tprivate BookshelfRepository repository;\r\n\r\n\t@RequestMapping("\/")\r\n\tpublic ModelAndView index(ModelAndView mav) {\r\n\t\tmav.setViewName("index");\r\n\t\tList<Bookshelf> list = repository.findAll();\r\n\t\tmav.addObject("list", list);\r\n\t\treturn mav;\r\n\t}\r\n<\/pre>\n\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3067\u672c\u68da\u306e\u30ea\u30b9\u30c8\u3092\u8868\u793a\u3059\u308b\u3002<\/p>\n
index.html<\/p>\n
\r\n<!DOCTYPE html>\r\n<html xmlns:th="http:\/\/www.thymeleaf.org">\r\n<head>\r\n<meta charset="UTF-8">\r\n<title>Bookshelf - \u672c\u68da<\/title>\r\n<\/head>\r\n<body>\r\n\r\n<h1>Bookshelf list<\/h1>\r\n<table>\r\n\t<tr th:each="bs : ${list}">\r\n\t\t<td th:text="${bs.name}"><\/td>\r\n\t<\/tr>\r\n<\/table>\r\n\r\n<hr \/>\r\n\r\n<div>\u65b0\u3057\u3044\u672c\u68da<\/div>\r\n<form action="\/addshelf" method="post">\r\n\t<div>\u306a\u307e\u3048<\/div>\r\n\t<div><input type="text" name="name" \/><\/div>\r\n\t<div><input id="submit" type="submit" value="+\u8ffd\u52a0" \/><\/div>\r\n<\/form>\r\n\r\n\r\n<\/body>\r\n<\/html>\r\n<\/pre>\nBook\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3059\u308b\u3002<\/p>\n
\r\npackage jp.kpc;\r\n\r\nimport javax.persistence.Column;\r\nimport javax.persistence.Entity;\r\nimport javax.persistence.GeneratedValue;\r\nimport javax.persistence.Id;\r\nimport javax.validation.constraints.NotEmpty;\r\nimport javax.validation.constraints.NotNull;\r\n\r\n@Entity\r\npublic class Book {\r\n\t@Id\r\n\t@GeneratedValue\r\n\t@Column\r\n\t@NotNull\r\n\tprivate long id;\r\n\r\n\t@Column\r\n\t@NotEmpty\r\n\tprivate String title;\r\n\r\n\t@Column\r\n\t@NotEmpty\r\n\tprivate String author;\r\n\r\n\tpublic long getId() {\r\n\t\treturn id;\r\n\t}\r\n\r\n\tpublic void setId(long id) {\r\n\t\tthis.id = id;\r\n\t}\r\n\r\n\tpublic String getTitle() {\r\n\t\treturn title;\r\n\t}\r\n\r\n\tpublic void setTitle(String title) {\r\n\t\tthis.title = title;\r\n\t}\r\n\r\n\tpublic String getAuthor() {\r\n\t\treturn author;\r\n\t}\r\n\r\n\tpublic void setAuthor(String author) {\r\n\t\tthis.author = author;\r\n\t}\r\n\r\n\r\n}\r\n<\/pre>\nBookController.java<\/p>\n
\r\npackage jp.kpc;\r\n\r\nimport org.springframework.stereotype.Controller;\r\nimport org.springframework.web.bind.annotation.RequestMapping;\r\nimport org.springframework.web.servlet.ModelAndView;\r\n\r\n@Controller\r\npublic class BookController {\r\n\t@RequestMapping("\/books")\r\n\tpublic ModelAndView index(ModelAndView mav) {\r\n\t\tmav.setViewName("books");\r\n\t\treturn mav;\r\n\t}\r\n\r\n}\r\n<\/pre>\nbooks.html<\/p>\n
\r\n<!DOCTYPE html>\r\n<html xmlns:th="http:\/\/www.thymeleaf.org">\r\n<head>\r\n<meta charset="UTF-8">\r\n<title>Book - \u672c\u306e\u30ea\u30b9\u30c8<\/title>\r\n<\/head>\r\n<body>\r\n\r\n<h1>Book list<\/h1>\r\n<table>\r\n\t<tr th:each="book : ${list}">\r\n\t\t<td th:text="${book.title}"><\/td>\r\n\t\t<td th:text="${book.author}"><\/td>\r\n\t<\/tr>\r\n<\/table>\r\n\r\n<hr \/>\r\n\r\n<div>\u65b0\u3057\u3044\u672c<\/div>\r\n<form action="\/addbook" method="post">\r\n\t<div>\u30bf\u30a4\u30c8\u30eb: <input type="text" name="title" \/><\/div>\r\n\t<div>\u8457\u8005: <input type="text" name="author" \/><\/div>\r\n\t<div><input id="submit" type="submit" value="+\u8ffd\u52a0" \/><\/div>\r\n<\/form>\r\n\r\n\r\n<\/body>\r\n<\/html>\r\n<\/pre>\nBookRepository.java<\/p>\n
\r\npackage jp.kpc;\r\n\r\nimport org.springframework.data.jpa.repository.JpaRepository;\r\n\r\npublic interface BookRepository extends JpaRepository<Book, Long> {\r\n\r\n}\r\n<\/pre>\n\u30ea\u30dd\u30b8\u30c8\u30ea\u3092\u7528\u610f\u3057\u305f\u306e\u3067\u3001\u305d\u308c\u3092BookController\u3067\u4f7f\u3046\u3002<\/p>\n
\r\npackage jp.kpc;\r\n\r\nimport java.util.List;\r\n\r\nimport org.springframework.beans.factory.annotation.Autowired;\r\nimport org.springframework.stereotype.Controller;\r\nimport org.springframework.web.bind.annotation.RequestMapping;\r\nimport org.springframework.web.bind.annotation.RequestMethod;\r\nimport org.springframework.web.bind.annotation.RequestParam;\r\nimport org.springframework.web.servlet.ModelAndView;\r\n\r\n@Controller\r\npublic class BookController {\r\n\t@Autowired\r\n\tprivate BookRepository repository;\r\n\r\n\t@RequestMapping("\/books")\r\n\tpublic ModelAndView index(ModelAndView mav) {\r\n\t\tmav.setViewName("books");\r\n\t\tList<Book> list = repository.findAll();\r\n\t\tmav.addObject("list", list);\r\n\t\treturn mav;\r\n\t}\r\n\r\n\t@RequestMapping(value="\/addbook", method=RequestMethod.POST)\r\n\tpublic ModelAndView formPost(ModelAndView mav,\r\n\t\t\t@RequestParam("title") String title,\r\n\t\t\t@RequestParam("author") String author) {\r\n\t\tBook book = new Book();\r\n\t\tbook.setTitle(title);\r\n\t\tbook.setAuthor(author);\r\n\t\trepository.saveAndFlush(book);\r\n\t\treturn new ModelAndView("redirect:\/books");\r\n\t}\r\n}\r\n<\/pre>\n\u672c\u3068\u672c\u68da\u306e\u95a2\u9023\u4ed8\u3051\u3092\u4f5c\u308b\u3002<\/p>\n
Bookshelf.java<\/p>\n
\r\npackage jp.kpc;\r\n\r\nimport java.util.List;\r\n\r\nimport javax.persistence.Column;\r\nimport javax.persistence.Entity;\r\nimport javax.persistence.GeneratedValue;\r\nimport javax.persistence.Id;\r\nimport javax.persistence.OneToMany;\r\nimport javax.validation.constraints.NotEmpty;\r\nimport javax.validation.constraints.NotNull;\r\n\r\n@Entity\r\npublic class Bookshelf {\r\n\t@Id\r\n\t@GeneratedValue\r\n\t@Column\r\n\t@NotNull\r\n\tprivate long id;\r\n\r\n\t@Column\r\n\t@NotEmpty\r\n\tprivate String name;\r\n\r\n\t@OneToMany\r\n\tprivate List<Book> books;\r\n\r\n\tpublic long getId() {\r\n\t\treturn id;\r\n\t}\r\n\r\n\tpublic void setId(long id) {\r\n\t\tthis.id = id;\r\n\t}\r\n\r\n\tpublic String getName() {\r\n\t\treturn name;\r\n\t}\r\n\r\n\tpublic void setName(String name) {\r\n\t\tthis.name = name;\r\n\t}\r\n\r\n\tpublic List<Book> getBooks() {\r\n\t\treturn books;\r\n\t}\r\n\r\n\tpublic void setBooks(List<Book> books) {\r\n\t\tthis.books = books;\r\n\t}\r\n\r\n}\r\n<\/pre>\nBook.java<\/p>\n
\r\npackage jp.kpc;\r\n\r\nimport javax.persistence.Column;\r\nimport javax.persistence.Entity;\r\nimport javax.persistence.GeneratedValue;\r\nimport javax.persistence.Id;\r\nimport javax.persistence.ManyToOne;\r\nimport javax.validation.constraints.NotEmpty;\r\nimport javax.validation.constraints.NotNull;\r\n\r\n@Entity\r\npublic class Book {\r\n\t@Id\r\n\t@GeneratedValue\r\n\t@Column\r\n\t@NotNull\r\n\tprivate long id;\r\n\r\n\t@Column\r\n\t@NotEmpty\r\n\tprivate String title;\r\n\r\n\t@Column\r\n\t@NotEmpty\r\n\tprivate String author;\r\n\r\n\t@ManyToOne\r\n\tprivate Bookshelf bookshelf;\r\n\r\n\tpublic long getId() {\r\n\t\treturn id;\r\n\t}\r\n\r\n\tpublic void setId(long id) {\r\n\t\tthis.id = id;\r\n\t}\r\n\r\n\tpublic String getTitle() {\r\n\t\treturn title;\r\n\t}\r\n\r\n\tpublic void setTitle(String title) {\r\n\t\tthis.title = title;\r\n\t}\r\n\r\n\tpublic String getAuthor() {\r\n\t\treturn author;\r\n\t}\r\n\r\n\tpublic void setAuthor(String author) {\r\n\t\tthis.author = author;\r\n\t}\r\n\r\n\tpublic Bookshelf getBookshelf() {\r\n\t\treturn bookshelf;\r\n\t}\r\n\r\n\tpublic void setBookshelf(Bookshelf bookshelf) {\r\n\t\tthis.bookshelf = bookshelf;\r\n\t}\r\n}\r\n<\/pre>\n\u672c\u3092\u5165\u308c\u308b\u672c\u68da\u3092\u6307\u5b9a\u3059\u308b\u305f\u3081\u306e\u753b\u9762\u3092\u4f5c\u308b\u3002
\n\u305d\u306e\u305f\u3081\u306b\u3001\/book\/{id} (id\u306fBook\u306eid)\u3068\u3044\u3046URL\u3092\u7528\u610f\u3059\u308b\u3002<\/p>\n\r\npackage jp.kpc;\r\n\r\nimport java.util.List;\r\nimport java.util.Optional;\r\n\r\nimport org.springframework.beans.factory.annotation.Autowired;\r\nimport org.springframework.stereotype.Controller;\r\nimport org.springframework.web.bind.annotation.PathVariable;\r\nimport org.springframework.web.bind.annotation.RequestMapping;\r\nimport org.springframework.web.bind.annotation.RequestMethod;\r\nimport org.springframework.web.bind.annotation.RequestParam;\r\nimport org.springframework.web.servlet.ModelAndView;\r\n\r\n@Controller\r\npublic class BookController {\r\n\t@Autowired\r\n\tprivate BookRepository repository;\r\n\r\n\t@RequestMapping("\/books")\r\n\tpublic ModelAndView index(ModelAndView mav) {\r\n\t\tmav.setViewName("books");\r\n\t\tList<Book> list = repository.findAll();\r\n\t\tmav.addObject("list", list);\r\n\t\treturn mav;\r\n\t}\r\n\r\n\t@RequestMapping(value="\/addbook", method=RequestMethod.POST)\r\n\tpublic ModelAndView formPost(ModelAndView mav,\r\n\t\t\t@RequestParam("title") String title,\r\n\t\t\t@RequestParam("author") String author) {\r\n\t\tBook book = new Book();\r\n\t\tbook.setTitle(title);\r\n\t\tbook.setAuthor(author);\r\n\t\trepository.saveAndFlush(book);\r\n\t\treturn new ModelAndView("redirect:\/books");\r\n\t}\r\n\r\n\r\n\t@RequestMapping(value = "\/book\/{id}", method = RequestMethod.GET)\r\n\tpublic ModelAndView book(ModelAndView mav,\r\n\t\t\t@PathVariable long id) {\r\n\t\tmav.setViewName("book");\r\n\t\tOptional<Book> data = repository.findById(id);\r\n\t\tmav.addObject("book", data.get());\r\n\t\treturn mav;\r\n\t}\r\n\r\n}\r\n<\/pre>\nbook.html<\/p>\n
\r\n<!DOCTYPE html>\r\n<html xmlns:th="http:\/\/www.thymeleaf.org">\r\n<head>\r\n<meta charset="UTF-8">\r\n<title>Book - \u672c\u3092\u5165\u308c\u308b\u672c\u68da\u3092\u6307\u5b9a\u3059\u308b<\/title>\r\n<\/head>\r\n<body>\r\n\r\n<h1>Book<\/h1>\r\n<table>\r\n\t<tr>\r\n\t\t<td th:text="${book.title}"><\/td>\r\n\t\t<td th:text="${book.author}"><\/td>\r\n\t<\/tr>\r\n<\/table>\r\n\r\n<hr \/>\r\n\r\n<div>\u3069\u306e\u672c\u68da\u306b\u5165\u308c\u307e\u3059\u304b\uff1f<\/div>\r\n<form action="\/book" method="post">\r\n\t<input type="hidden" name="bookId" th:value="${book.id}" \/>\r\n\t<div>\u672c\u68daID: <input type="text" name="bookshelfId" \/><\/div>\r\n\t<div><input id="submit" type="submit" value="\u672c\u68da\u306b\u5165\u308c\u308b" \/><\/div>\r\n<\/form>\r\n\r\n\r\n<\/body>\r\n<\/html>\r\n<\/pre>\n\u672c\u3068\u672c\u68da\u306e\u95a2\u9023\u4ed8\u3051\u3092\u4fdd\u5b58\u3059\u308b\u3002<\/p>\n
BookController.java<\/p>\n
\r\n\t@Autowired\r\n\tprivate BookshelfRepository bookshelfRepository;\r\n<\/pre>\n\r\n\t@RequestMapping(value="\/book", method=RequestMethod.POST)\r\n\tpublic ModelAndView save(ModelAndView mav,\r\n\t\t\t@RequestParam("bookId") long bookId,\r\n\t\t\t@RequestParam("bookshelfId") long bookshelfId) {\r\n\t\tOptional<Book> data = repository.findById(bookId);\r\n\t\tBook book = data.get();\r\n\t\tOptional<Bookshelf> bsData = bookshelfRepository.findById(bookshelfId);\r\n\t\tBookshelf bookshelf = bsData.get();\r\n\t\tbook.setBookshelf(bookshelf);\r\n\t\trepository.saveAndFlush(book);\r\n\t\treturn new ModelAndView("redirect:\/books");\r\n\t}\r\n<\/pre>\nbooks.html<\/p>\n
\r\n<!DOCTYPE html>\r\n<html xmlns:th="http:\/\/www.thymeleaf.org">\r\n<head>\r\n<meta charset="UTF-8">\r\n<title>Book - \u672c\u306e\u30ea\u30b9\u30c8<\/title>\r\n<\/head>\r\n<body>\r\n\r\n<h1>Book list<\/h1>\r\n<table>\r\n\t<tr>\r\n\t\t<th>ID<\/th><th>\u30bf\u30a4\u30c8\u30eb<\/th><th>\u8457\u8005<\/th><th>\u672c\u68da<\/th>\r\n\t<\/tr>\r\n\t<tr th:each="book : ${list}">\r\n\t\t<td th:text="${book.id}"><\/td>\r\n\t\t<td th:text="${book.title}"><\/td>\r\n\t\t<td th:text="${book.author}"><\/td>\r\n\t\t<td th:if="${book.bookshelf != null}" th:text="${book.bookshelf.name}"><\/td>\r\n\t\t<td th:if="${book.bookshelf == null}" th:text="\u672c\u68da\u306b\u5165\u308c\u3066\u307e\u305b\u3093"><\/td>\r\n\t<\/tr>\r\n<\/table>\r\n\r\n<hr \/>\r\n\r\n<div>\u65b0\u3057\u3044\u672c<\/div>\r\n<form action="\/addbook" method="post">\r\n\t<div>\u30bf\u30a4\u30c8\u30eb: <input type="text" name="title" \/><\/div>\r\n\t<div>\u8457\u8005: <input type="text" name="author" \/><\/div>\r\n\t<div><input id="submit" type="submit" value="+\u8ffd\u52a0" \/><\/div>\r\n<\/form>\r\n\r\n\r\n<\/body>\r\n<\/html>\r\n<\/pre>\n\u672c\u306e\u30bf\u30a4\u30c8\u30eb\u3092\u30af\u30ea\u30c3\u30af\u3057\u305f\u3089\u3001\/book\/{id} \u306b\u98db\u3079\u308b\u3088\u3046\u306b\u3059\u308b\u3002<\/p>\n
\r\n<h1>Book list<\/h1>\r\n<table>\r\n\t<tr>\r\n\t\t<th>ID<\/th><th>\u30bf\u30a4\u30c8\u30eb<\/th><th>\u8457\u8005<\/th><th>\u672c\u68da<\/th>\r\n\t<\/tr>\r\n\t<tr th:each="book : ${list}">\r\n\t\t<td th:text="${book.id}"><\/td>\r\n\t\t<td><a th:href="@{'\/book\/' + ${book.id}}" th:text="${book.title}"><\/a><\/td>\r\n\t\t<td th:text="${book.author}"><\/td>\r\n\t\t<td th:if="${book.bookshelf != null}" th:text="${book.bookshelf.name}"><\/td>\r\n\t\t<td th:if="${book.bookshelf == null}" th:text="\u672c\u68da\u306b\u5165\u308c\u3066\u307e\u305b\u3093"><\/td>\r\n\t<\/tr>\r\n<\/table>\r\n<\/pre>\n\u672c\u68da\u306b\u5165\u3063\u3066\u3044\u308b\u672c\u306e\u30ea\u30b9\u30c8\u3092\u8868\u793a\u3059\u308b\u753b\u9762\u3092\u4f5c\u308b\u3002<\/p>\n
\/bookshelf\/{id} \u3067\u672c\u68da\u5185\u306e\u672c\u306e\u30ea\u30b9\u30c8\u3092\u8868\u793a\u3059\u308b\u3002<\/p>\n
bookshelf.html<\/p>\n
\r\n<!DOCTYPE html>\r\n<html xmlns:th="http:\/\/www.thymeleaf.org">\r\n<head>\r\n<meta charset="UTF-8">\r\n<title>Bookshelf - \u672c\u68da\u306b\u5165\u3063\u3066\u3044\u308b\u672c\u306e\u30ea\u30b9\u30c8<\/title>\r\n<\/head>\r\n<body>\r\n\r\n<h1>Bookshelf - \u672c\u68da\u306b\u5165\u3063\u3066\u3044\u308b\u672c\u306e\u30ea\u30b9\u30c8<\/h1>\r\n\r\n<h3 th:text="${bookshelf.name}"><\/h3>\r\n\r\n<ul th:each="book : ${bookshelf.books}">\r\n\t<li th:text="${book.title + ' - ' + book.author}"><\/li>\r\n<\/ul>\r\n\r\n\r\n<\/body>\r\n<\/html>\r\n<\/pre>\nBookshelf.java<\/p>\n
\r\n@Entity\r\npublic class Bookshelf {\r\n\t@Id\r\n\t@GeneratedValue\r\n\t@Column\r\n\t@NotNull\r\n\tprivate long id;\r\n\r\n\t@Column\r\n\t@NotEmpty\r\n\tprivate String name;\r\n\r\n\t@OneToMany(mappedBy = "bookshelf")\r\n\tprivate List<Book> books;\r\n\r\n<\/pre>\nIndexController.java<\/p>\n
\r\n\t@RequestMapping(value = "\/bookshelf\/{id}", method = RequestMethod.GET)\r\n\tpublic ModelAndView bookshelf(ModelAndView mav,\r\n\t\t\t@PathVariable long id) {\r\n\t\tmav.setViewName("bookshelf");\r\n\t\tOptional<Bookshelf> data = repository.findById(id);\r\n\t\tmav.addObject("bookshelf", data.get());\r\n\t\treturn mav;\r\n\t}\r\n<\/pre>\nindex.html\u306e\u30c6\u30fc\u30d6\u30eb\u306b\u5217\u3092\u8ffd\u52a0\u3057\u3066\u3001\u672c\u68da\u306eID\u3092\u8868\u793a\u3059\u308b\u3002<\/p>\n
\r\n<!DOCTYPE html>\r\n<html xmlns:th="http:\/\/www.thymeleaf.org">\r\n<head>\r\n<meta charset="UTF-8">\r\n<title>Bookshelf - \u672c\u68da<\/title>\r\n<\/head>\r\n<body>\r\n\r\n<h1>Bookshelf list<\/h1>\r\n<table>\r\n\t<tr th:each="bs : ${list}">\r\n\t\t<td th:text="${bs.id}"><\/td>\r\n\t\t<td th:text="${bs.name}"><\/td>\r\n\t<\/tr>\r\n<\/table>\r\n\r\n<hr \/>\r\n\r\n<div>\u65b0\u3057\u3044\u672c\u68da<\/div>\r\n<form action="\/addshelf" method="post">\r\n\t<div>\u306a\u307e\u3048<\/div>\r\n\t<div><input type="text" name="name" \/><\/div>\r\n\t<div><input id="submit" type="submit" value="+\u8ffd\u52a0" \/><\/div>\r\n<\/form>\r\n\r\n\r\n<\/body>\r\n<\/html>\r\n<\/pre>\n\u672c\u68da\u306e\u540d\u524d\u3092\u30af\u30ea\u30c3\u30af\u3057\u305f\u3089\u3001\u672c\u68da\u306e\u5185\u5bb9\u3092\u8868\u793a\u3059\u308b\u30da\u30fc\u30b8\u306b\u79fb\u52d5\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3002
\n\u672c\u306e\u30ea\u30b9\u30c8\u30da\u30fc\u30b8\uff08\/books\uff09\u3078\u306e\u30ea\u30f3\u30af\u3082\u8ffd\u52a0\u3059\u308b\u3002<\/p>\n\r\n<!DOCTYPE html>\r\n<html xmlns:th="http:\/\/www.thymeleaf.org">\r\n<head>\r\n<meta charset="UTF-8">\r\n<title>Bookshelf - \u672c\u68da<\/title>\r\n<\/head>\r\n<body>\r\n\r\n<h1>Bookshelf list<\/h1>\r\n<table>\r\n\t<tr th:each="bs : ${list}">\r\n\t\t<td th:text="${bs.id}"><\/td>\r\n\t\t<td><a th:href="@{'\/bookshelf\/' + ${bs.id}}" th:text="${bs.name}"><\/a><\/td>\r\n\t<\/tr>\r\n<\/table>\r\n\r\n<hr \/>\r\n\r\n<div>\u65b0\u3057\u3044\u672c\u68da<\/div>\r\n<form action="\/addshelf" method="post">\r\n\t<div>\u306a\u307e\u3048<\/div>\r\n\t<div><input type="text" name="name" \/><\/div>\r\n\t<div><input id="submit" type="submit" value="+\u8ffd\u52a0" \/><\/div>\r\n<\/form>\r\n\r\n<a href="\/books">\u672c\u306e\u30ea\u30b9\u30c8<\/a>\r\n\r\n\r\n<\/body>\r\n<\/html>\r\n<\/pre>\nbooks.html\u3001book.html\u3001bookshelf.html \u306b\u3001\u30c8\u30c3\u30d7\u30da\u30fc\u30b8\u3078\u306e\u30ea\u30f3\u30af\u3092\u8ffd\u52a0\u3059\u308b\u3002<\/p>\n
books.html<\/p>\n
\r\n<!DOCTYPE html>\r\n<html xmlns:th="http:\/\/www.thymeleaf.org">\r\n<head>\r\n<meta charset="UTF-8">\r\n<title>Book - \u672c\u306e\u30ea\u30b9\u30c8<\/title>\r\n<\/head>\r\n<body>\r\n\r\n<h1>Book list<\/h1>\r\n\r\n<a href="\/">\u30c8\u30c3\u30d7<\/a>\r\n\r\n<table>\r\n:\r\n<\/pre>\nbook.html<\/p>\n
\r\n<!DOCTYPE html>\r\n<html xmlns:th="http:\/\/www.thymeleaf.org">\r\n<head>\r\n<meta charset="UTF-8">\r\n<title>Book - \u672c\u3092\u5165\u308c\u308b\u672c\u68da\u3092\u6307\u5b9a\u3059\u308b<\/title>\r\n<\/head>\r\n<body>\r\n\r\n<h1>Book<\/h1>\r\n\r\n<a href="\/">\u30c8\u30c3\u30d7<\/a>\r\n\r\n<table>\r\n:\r\n<\/pre>\nbookshelf.html<\/p>\n
\r\n<!DOCTYPE html>\r\n<html xmlns:th="http:\/\/www.thymeleaf.org">\r\n<head>\r\n<meta charset="UTF-8">\r\n<title>Bookshelf - \u672c\u68da\u306b\u5165\u3063\u3066\u3044\u308b\u672c\u306e\u30ea\u30b9\u30c8<\/title>\r\n<\/head>\r\n<body>\r\n\r\n<h1>Bookshelf - \u672c\u68da\u306b\u5165\u3063\u3066\u3044\u308b\u672c\u306e\u30ea\u30b9\u30c8<\/h1>\r\n\r\n<a href="\/">\u30c8\u30c3\u30d7<\/a>\r\n\r\n<h3 th:text="${bookshelf.name}"><\/h3>\r\n:\r\n<\/pre>\n\u672c\u68da\u30da\u30fc\u30b8\u5185\u306b\u8868\u793a\u3057\u305f\u672c\u306e\u30ea\u30b9\u30c8\u3067\u3001\u30bf\u30a4\u30c8\u30eb\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3068\u672c\u306e\u30da\u30fc\u30b8\u306b\u79fb\u52d5\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3002<\/p>\n
\r\n<!DOCTYPE html>\r\n<html xmlns:th="http:\/\/www.thymeleaf.org">\r\n<head>\r\n<meta charset="UTF-8">\r\n<title>Bookshelf - \u672c\u68da\u306b\u5165\u3063\u3066\u3044\u308b\u672c\u306e\u30ea\u30b9\u30c8<\/title>\r\n<\/head>\r\n<body>\r\n\r\n<h1>Bookshelf - \u672c\u68da\u306b\u5165\u3063\u3066\u3044\u308b\u672c\u306e\u30ea\u30b9\u30c8<\/h1>\r\n\r\n<a href="\/">\u30c8\u30c3\u30d7<\/a>\r\n\r\n<h3 th:text="${bookshelf.name}"><\/h3>\r\n\r\n<ul th:each="book : ${bookshelf.books}">\r\n\t<li>\r\n\t\t<a th:href="@{'\/book\/' + ${book.id}}" th:text="${book.title}"><\/a>\r\n\t\t<span th:text="${' - ' + book.author}"><\/span>\r\n\t<\/li>\r\n<\/ul>\r\n\r\n\r\n<\/body>\r\n<\/html>\r\n<\/pre>\nbook.html \u3067\u3001\u672c\u68daID\u3092\u5165\u529b\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001select \u3067\u9078\u629e\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3002<\/p>\n
BookController.java \u3067\u3001\u672c\u68da\u306e\u30ea\u30b9\u30c8\u3092\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306b\u6e21\u3059\u3088\u3046\u306b\u3059\u308b\u3002<\/p>\n
\r\n\t@RequestMapping(value = "\/book\/{id}", method = RequestMethod.GET)\r\n\tpublic ModelAndView book(ModelAndView mav,\r\n\t\t\t@PathVariable long id) {\r\n\t\tmav.setViewName("book");\r\n\t\tOptional<Book> data = repository.findById(id);\r\n\t\tmav.addObject("book", data.get());\r\n\t\tList<Bookshelf> list = bookshelfRepository.findAll();\r\n\t\tmav.addObject("bookshelfList", list);\r\n\t\treturn mav;\r\n\t}\r\n<\/pre>\nbook.html<\/p>\n
\r\n<!DOCTYPE html>\r\n<html xmlns:th="http:\/\/www.thymeleaf.org">\r\n<head>\r\n<meta charset="UTF-8">\r\n<title>Book - \u672c\u3092\u5165\u308c\u308b\u672c\u68da\u3092\u6307\u5b9a\u3059\u308b<\/title>\r\n<\/head>\r\n<body>\r\n\r\n<h1>Book<\/h1>\r\n\r\n<a href="\/">\u30c8\u30c3\u30d7<\/a>\r\n\r\n<table>\r\n\t<tr>\r\n\t\t<td th:text="${book.title}"><\/td>\r\n\t\t<td th:text="${book.author}"><\/td>\r\n\t<\/tr>\r\n<\/table>\r\n\r\n<hr \/>\r\n\r\n<div>\u3069\u306e\u672c\u68da\u306b\u5165\u308c\u307e\u3059\u304b\uff1f<\/div>\r\n<form action="\/book" method="post">\r\n\t<input type="hidden" name="bookId" th:value="${book.id}" \/>\r\n\t<div>\r\n\t\t<select name="bookshelfId">\r\n\t\t\t<option th:each="bs : ${bookshelfList}" th:value="${bs.id}" th:selected="${bs.id == book.id}" th:text="${bs.name}"><\/option>\r\n\t\t<\/select>\r\n\t<\/div>\r\n\t<div><input id="submit" type="submit" value="\u672c\u68da\u306b\u5165\u308c\u308b" \/><\/div>\r\n<\/form>\r\n\r\n\r\n<\/body>\r\n<\/html>\r\n<\/pre>\n\u672c\u68da\u306b\u5165\u308c\u306a\u3044\u9078\u629e\u80a2\u3092\u8ffd\u52a0\u3059\u308b\u3002<\/p>\n
\r\n<div>\u3069\u306e\u672c\u68da\u306b\u5165\u308c\u307e\u3059\u304b\uff1f<\/div>\r\n<form action="\/book" method="post">\r\n\t<input type="hidden" name="bookId" th:value="${book.id}" \/>\r\n\t<div>\r\n\t\t<select name="bookshelfId">\r\n\t\t\t<option value="0">\u672c\u68da\u306b\u5165\u308c\u306a\u3044<\/option>\r\n\t\t\t<option th:each="bs : ${bookshelfList}" th:value="${bs.id}" th:selected="${bs.id == book.id}" th:text="${bs.name}"><\/option>\r\n\t\t<\/select>\r\n\t<\/div>\r\n\t<div><input id="submit" type="submit" value="\u672c\u68da\u306b\u5165\u308c\u308b" \/><\/div>\r\n<\/form>\r\n<\/pre>\n\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3067\u306f\u3001\u672c\u68da\u691c\u7d22\u3057\u3066\u898b\u3064\u304b\u3089\u306a\u3044\u3068\u304d\u306f null \u3092\u8a2d\u5b9a\u3059\u308b\u3002<\/p>\n
\r\n\t@RequestMapping(value="\/book", method=RequestMethod.POST)\r\n\tpublic ModelAndView save(ModelAndView mav,\r\n\t\t\t@RequestParam("bookId") long bookId,\r\n\t\t\t@RequestParam("bookshelfId") long bookshelfId) {\r\n\t\tOptional<Book> data = repository.findById(bookId);\r\n\t\tBook book = data.get();\r\n\t\tOptional<Bookshelf> bsData = bookshelfRepository.findById(bookshelfId);\r\n\t\tif(bsData.isPresent()) {\r\n\t\t\tBookshelf bookshelf = bsData.get();\r\n\t\t\tbook.setBookshelf(bookshelf);\r\n\t\t} else {\r\n\t\t\tbook.setBookshelf(null);\r\n\t\t}\r\n\t\trepository.saveAndFlush(book);\r\n\t\treturn new ModelAndView("redirect:\/books");\r\n\t}\r\n<\/pre>\n\n<\/div>","protected":false},"excerpt":{"rendered":"\u65b0\u898f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b\u3002 \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u7a2e\u985e\u306f\u3001Spring\u30b9\u30bf\u30fc\u30bf\u30fc\u30fb\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u9078\u629e\u3059\u308b\u3002 \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u540d\u3092\u300cbookshelf\u300d\u306b\u3057\u3066\u6b21\u3078\u3092\u30af\u30ea\u30c3\u30af\u3002 \u4f9d\u5b58\u95a2\u4fc2\u306f\u3001\u4ee5\u4e0b\u306e\u9805\u76ee\u3092\u9078\u629e\u3059\u308b\u3002 HyperSQL D … \u7d9a\u304d\u3092\u8aad\u3080 Bookshelf\u30a2\u30d7\u30ea\u3092\u4f5c\u6210\u3059\u308b<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,5],"tags":[],"class_list":["post-79","post","type-post","status-publish","format-standard","hentry","category-java","category-springboot"],"views":405,"_links":{"self":[{"href":"https:\/\/kpc2020.satoshis.jp\/index.php?rest_route=\/wp\/v2\/posts\/79","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kpc2020.satoshis.jp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kpc2020.satoshis.jp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kpc2020.satoshis.jp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kpc2020.satoshis.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=79"}],"version-history":[{"count":37,"href":"https:\/\/kpc2020.satoshis.jp\/index.php?rest_route=\/wp\/v2\/posts\/79\/revisions"}],"predecessor-version":[{"id":117,"href":"https:\/\/kpc2020.satoshis.jp\/index.php?rest_route=\/wp\/v2\/posts\/79\/revisions\/117"}],"wp:attachment":[{"href":"https:\/\/kpc2020.satoshis.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=79"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kpc2020.satoshis.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=79"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kpc2020.satoshis.jp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=79"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}